I posted my submission this AM, but I liked these and thought I would drop them here.
Broken Portal
Portal in the Ruins
This Portal Closed
Inner Portal
Undeveloped Concept:
"Portal Potty"
A row of identical Porta-Pottys, doors all closed except for one partially open.
Shoot from 45 degree front...maybe unsuspecting citizen opening the door.
Layer in a paste from another photo inside the open door, eg: large cat's eye, or fluffy clouds, or night city skyline, or....
I like the "Portal-Potty" concept, but it would exceed what I'm comfortable with in terms of photo-shopping entries in the DU contest. I may try it for grins this weekend if I have the time.
Many interesting and creative photos in the submission thread.
I enjoy our contests.
Kudos to all the participants.